Traffic light fish die at 30 ℃, because they are relatively fragile. Although they belong to tropical fish, they cannot accept too high a temperature. If the water temperature for raising them is kept at about 30 ℃ all the time, their resistance and immunity will decline, and some of them will show irritable personality.

The water temperature can be kept between 22-26 ℃ by raising traffic light fish artificially. The maximum temperature should not exceed 30 ℃, but the minimum temperature should not be lower than 20 ℃.

1. Keep the water temperature constant: It is not very difficult to raise the traffic light fish, and they always die because the living water temperature changes too much. When raising artificially, it is best to use a heating rod to keep the water temperature between 22-26 ℃.

2. Keep the water quality stable: Traffic light fish like weak acidic old water, and many breeders change water frequently in order to keep the water quality clean, which will also lead to discomfort of traffic light fish and eventually die. Breeders need to change water regularly and quantitatively, and adjust the temperature between new water and old water to be consistent before changing water.

3. Keep enough oxygen: It is also possible that traffic light fish always die because of lack of oxygen. Although their demand for oxygen is not high, lack of oxygen will also occur when the feeding density is high. Artificial breeding requires regular oxygenation to ensure sufficient dissolved oxygen in water.